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Questions to practise
What do you do before you start work on a circuit?
Safety comes first. They want to hear that you follow the same safe steps every time.
Give your steps in order: isolate the power (switch it off and separate it), lock it off so no one can switch it on, add a tag, and test that it is dead. Use first, then, after that.
How do you make sure your work follows the rules and the plan?
Good work must match the drawings and the local wiring rules. They want to see that you check carefully.
Say you read the drawings before you start and ask if something is not clear. Explain that you test your work when it is finished and write down the results. Do not name laws you are not sure about.
Tell me about a fault you found that was hard to find.
They want to see your method, not only the result.
Tell one real story. Say what was wrong, how you tested, what you found, and how you fixed it. For example: the power kept tripping, you tested each circuit, and you found a damaged cable.
What exactly did you test, and what did the results show?
This follow-up checks that the fault story is real and that you used a clear method.
Name the tests you did and what you saw. Explain how each result helped you narrow down the problem. If you are not sure of a word, describe the test in simple words.
What do you do next if your first test does not find the fault?
They want to know you stay calm and keep a logical method.
Show a plan. For example: you check your test again, split the circuit into parts, and test each part. Say you ask a colleague if you are stuck. This shows care, not weakness.
How do you work on a busy site with other trades?
Sites are shared. They want someone who communicates and respects others' work.
Give one or two real habits. For example: you check the plan each morning, tell others when power will be off, and keep your area tidy. Say how you sort out problems politely.
How do you explain a problem to a customer?
Many customers do not understand electrical work. Clear, kind explanations build trust.
Say you use plain words and avoid technical terms. Explain what you found, what you will do, and how long it will take, before you start. Give a short real example.
What do you do if a customer is worried or upset?
They want to see patience and respect in people's homes.
Say you listen first and stay calm. Explain the problem clearly and offer a clear next step, like a time or a choice. You can add small signs of respect, like keeping their home clean.
What would you do if you saw someone working unsafely on site?
They want to know safety matters to you even when the work is not yours.
Say you would speak up politely and stop the work if there is danger. Then you would tell the supervisor. Keep the answer calm and clear.
Why do you want to work on this team?
They want to know you are interested in this job and how you will fit in.
Link your answer to the job: safe work, finding faults, and helping customers. Say what you enjoy about the work. Keep it honest and short.
Before I start, I always isolate the power and test it.
Clara
AI coach
Leo
AI coach
Lines to try
Before I start, I always isolate the power and test it.
First I lock it off, then I test that it is dead.
Let me think of a good example of a fault.
I tested each circuit and found the problem.
I explain the problem to the customer in simple words.
I always tell the other trades when the power will be off.
Common questions
What if I forget an English word for a tool or test?
That is normal. Describe it in simple words, like 'the tool that checks if there is power'. The interviewer wants to understand your method. Clear and calm is more important than perfect words.
How long should my answers be?
Most answers can be three to five sentences. For safety, give your steps in order. For a fault story, say what was wrong, how you tested, what you found, and how you fixed it. Then stop and wait.
Can I take a moment to think before I answer?
Yes. You can say, 'Let me think of a good example.' A short pause is fine. It is better to give a clear, real example than to answer too fast.